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netfilter: ipt_CLUSTERIP: use proper net namespace to operate CLUSTERIP 

we can allow users in uninit net namespace to operate ipt_CLUSTERIP
now.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Gao feng 2013-09-25 15:38:49 +08:00 committed by Pablo Neira Ayuso
parent f58d786601
commit d86946d2c5
1 changed files with 6 additions and 4 deletions
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10
net/ipv4/netfilter/ipt_CLUSTERIP.c
View File

@ -99,7 +99,8 @@ clusterip_config_put(struct clusterip_config *c)
static inline void
clusterip_config_entry_put(struct clusterip_config *c)
{
struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
struct net *net = dev_net(c->dev);
struct clusterip_net *cn = net_generic(net, clusterip_net_id);
local_bh_disable();
if (atomic_dec_and_lock(&c->entries, &cn->lock)) {
@ -381,7 +382,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
/* FIXME: further sanity checks */
config = clusterip_config_find_get(&init_net, e->ip.dst.s_addr, 1);
config = clusterip_config_find_get(par->net, e->ip.dst.s_addr, 1);
if (!config) {
if (!(cipinfo->flags & CLUSTERIP_FLAG_NEW)) {
pr_info("no config found for %pI4, need 'new'\n",
@ -395,7 +396,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
return -EINVAL;
}
dev = dev_get_by_name(&init_net, e->ip.iniface);
dev = dev_get_by_name(par->net, e->ip.iniface);
if (!dev) {
pr_info("no such interface %s\n",
e->ip.iniface);
@ -503,6 +504,7 @@ arp_mangle(unsigned int hook,
struct arphdr *arp = arp_hdr(skb);
struct arp_payload *payload;
struct clusterip_config *c;
struct net *net = dev_net(in ? in : out);
/* we don't care about non-ethernet and non-ipv4 ARP */
if (arp->ar_hrd != htons(ARPHRD_ETHER) ||
@ -519,7 +521,7 @@ arp_mangle(unsigned int hook,
/* if there is no clusterip configuration for the arp reply's
* source ip, we don't want to mangle it */
c = clusterip_config_find_get(&init_net, payload->src_ip, 0);
c = clusterip_config_find_get(net, payload->src_ip, 0);
if (!c)
return NF_ACCEPT;